中文摘要：

微波辐射下，1-肼羰亚甲基．2-三氟甲基苯并咪唑与芳酰基异硫氰酸酯反应合成了1-（2-三氟甲基苯并咪唑-1-乙酰基）．4．芳酰基氨基硫脲（1a～1j），继而在乙酸中合环得到了-系列的2-芳甲酰氨基-5-（2-三氟甲基苯并咪唑-1-亚甲基）-1，3，4．噻二唑（2a～2j），反应时间短，产率高，副反应少．标题化合物经元素分析，IR，1HNMR确证结构．

英文摘要：

1-[（2-Trifluoromethylbenzimidazol- 1-yl）acetyl]-4-aroylthiosemicarbazide derivatives 1a-1j were synthesized by the reaction of 1-hydrazinocarbonylmethyl-2-trifluoromethylbenzoimidazole with aroylisothiocyanate under microwave irradiation. Then compounds 1a-1j were cyclized in acetic acid to afford a series of novel 2-aroylamino-5-（2-trifluoromethylbenzimidazol-l-ylmethyl）-1,3,4-thiadiazole derivatives 2a-2j under microwave irradiation. In comparison, it was found that the process under microwave irradiation had many merits with short time, excellent yields and less secondary reactions. The structures of all the new compounds were confirmed by elemental analysis, IR and 1H NMR spectra.